Wrench



(No Model.)

L. CHAPMAN.

Wrench.

N o. 243,509. Patented Julie 28, 188.1.

Mt-TLGSSBS N4 PETERS Phamumugnpher, wnhingwn. D. C.

UNITED STATES PATENT OEEICE.

LUKE CHAPMAN, OF COLLINSVILLE, CONNECTICUT.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 243,509, dated June 28, 1881.

Application filed October 23, 1880.

To all whom it may concern:

Be it known that I, LUKE CHAPMAN, of Collinsville, in the county of Hartford and State of Connecticut, have invented a certain new and useful Improvement in lVreuches, of which the following is a description, reference being had to the accompanying drawings, where- Figure l is a side View of a wrench embodying my improvement. Fig. 2 is a view similar to Fig. 1, with the handle cutin central longitudinal section. Fig. 3 is a cross-section view ofthe wrench on plane w a. Figs. 4 and 5 are modification views similar to Fig. 2, showing only the lower part ofthe wrench.

The improvement consists, mainly or virtually, in a handle for wrenches which combines the excellences of both metal and wood handles without the defects of either. A wood handle is Very liable to split and break, particularly if the step-plate rests directly upon it, and a metallic handle is heavy, unpleasant to handle in cold weather, and wears so smooth as to be very slippery.

The letter a denotes the Wrenchbar; b, the movable jaw; c, the operating-screw; d, the step-plate.

The handle consists of a cast (iron) metallic body, f,hollowed outon the inside by the chamber g, for the sake ot lightness, fitting at the upper end on the bar and against theV bottom of the step-plate. At the lower end there is a nut, h, made integral with the handle-body, and screwing upon the bar, threaded at this point. The outer surface of the handle body bears sunken mortises i, filled with wood (or lthe like) pressed into them, so that only a small portion of the surface of the handle, when it (No model.)

is grasped in using, is metallic, the other and larger portion being wood. At the saine time the ends are wholly metallic, and are thereby fitted for contact with and to take strains from other metallic parts. The metallic handle-body is o'f course titted to bear and transmit such strains.

In Fig. 4 I show the nut answering to nuth made as a separate piece. In Fig. 5 I show the handle'fitted with integral nuts at both ends. I have said that the mortises in the metallic handle are filled with wood or the like. By the expression or the like77 I mean other substance or material which in the present case will answer the purpose of woodsuch as rubber, leather, horn, or compressed pulp, for instances. It is intended to force the lling into the mortises t' under considerable pressure, to the end that such filling may remain in place, and the falling out ofthe filling may be guarded against by the use ot' any suitable cement on lthe sides and bottom ot' the mortises.

I claim as my improvcmentl. The metallic handle -body with metal ends, interiorly chambered and exteriorly niortised and filled with wood or thelike, substantiall)v as described.

2. The metallic handle-body having anut at the end integral therewith, and exteriorly mortised and filled with woo'l or the like, substantially as described.

LUKE CHAPMAN.

Witnesses:

OLIVER F. PERRY,

GEORGE P. EDwARDs. 

